This script processes model results from the Canadian Wildlife Survey to extract regional bird population trends from the USGS Breeding Bird Survey. The script pulls pulls annual indices and genreates plots for data from Minnesota Bird Conservation Region #23 (which is where all Three Rivers parks are located). These trends are used as a baseline in other analyses to compare against trends within the parks. This script is a prerequisite for other analyses.
Setup
Load required packages & data
Prepare data
# Read BBS index data for a specific stratum (US-MN-23)
dat_indices <- read_csv(here("Data", "Wildlife", "BBS", "BBS_CWS", "All_2021_BBS_indices.csv"), show_col_types = FALSE) %>%
filter(Strata_included == "US-MN-23")
head(dat_indices)
# Align BBS species with eBird taxonomy
dat_indices$species[which(dat_indices$species == "Red-tailed Hawk (all forms)")] <- "Red-tailed Hawk"
dat_indices$species[which(dat_indices$species == "Northern Flicker (all forms)")] <- "Northern Flicker"
# Do the same with trend data
dat_trends <- read_csv(here("Data", "Wildlife", "BBS", "BBS_CWS", "All_2021_BBS_trends.csv"), show_col_types = FALSE) %>%
filter(
Strata_included == "US-MN-23",
Region_type == "stratum"
)
dat_trends$species[which(dat_trends$species == "Red-tailed Hawk (all forms)")] <- "Red-tailed Hawk"
dat_trends$species[which(dat_trends$species == "Northern Flicker (all forms)")] <- "Northern Flicker"
dat_trends <- dat_trends %>%
select(-Trend_Time) %>%
mutate(across(starts_with("Trend"), ~ round(., 1)))
dat_trends_1970to2021 <- dat_trends %>% filter(Start_year == "1970")
dat_trends_2011to2021 <- dat_trends %>% filter(Start_year == "2011")
# Create a unique list of species
sp_list <- unique(dat_indices$species)
# Drop problematic species
sp_list <- sp_list[-c(65, 73, 115, 137)] # drop "Sapsuckers (Yellow-bellied\Red-naped\Red-breasted\Williamson's)" and "Solitary Vireo (Blue-headed\Cassin's)" and "Traill's Flycatcher (Alder\Willow)" and ""Northern Oriole (Bullock's/Baltimore)" because they break things.Process data
# Function to process and visualize data for a focal species. Saves indices as csv and genreates plot showing trend.
process_data <- function(focal_species) {
dat_sp <- filter(dat_indices, species == focal_species)
write_csv(dat_sp, paste0(here("Results", "993_BBS_fromCWS", "Indices"), "/", focal_species, ".csv"))
p <- ggplot2::ggplot() +
ggplot2::geom_point(data = dat_sp, ggplot2::aes(x = Year, y = obs_mean), colour = "navy", alpha = .4, size = 1) +
ggplot2::geom_line(data = dat_sp, ggplot2::aes(x = Year, y = Index), colour = "navy", size = .8) +
ggplot2::geom_ribbon(data = dat_sp, ggplot2::aes(x = Year, ymin = Index_q_0.025, ymax = Index_q_0.975), fill = "navy", alpha = 0.2) +
scale_x_continuous(limits = c(1967, 2021), breaks = seq(from = 1965, to = 2020, by = 5)) +
ggplot2::scale_y_continuous(limits = c(0, NA)) +
ggthemes::theme_clean() +
ggplot2::theme(
axis.line = element_line(colour = "black"),
plot.title = ggplot2::element_text(size = 16),
plot.subtitle = ggplot2::element_text(size = 12),
axis.title = ggplot2::element_text(size = 12),
axis.text = ggplot2::element_text(size = 12)
) +
ggplot2::labs(
title = focal_species,
x = "Year",
y = "Annual index of abundance (mean count)",
subtitle = "Breeding Bird Survey: Minnesota BCR #23"
)
ggsave(filename = paste0(focal_species, ".png"), plot = p, path = here("Results", "993_BBS_fromCWS", "Plots"), width = 7, height = 5)
}
# Get list of species that haven't been processed yet (in previous runs of this code)
species_to_run <- list.files(
path = here("Results", "993_BBS_fromCWS", "Plots")
)
species_to_run <- gsub("\\.png", "", species_to_run)
species_to_run <- setdiff(sp_list, species_to_run)
# Apply the processing function to each species
lapply(species_to_run, process_data)
# Save the BBS indices as RDS
# saveRDS(dat_indices, here("Results", "993_BBS_fromCWS", "Indices","00_all_sp_MN23.RDS"))Visualize data
files <- list.files(path = here("Results", "993_BBS_fromCWS", "Plots"), full.names = TRUE)
files_names <- list.files(path = here("Results", "993_BBS_fromCWS", "Plots"), full.names = FALSE)
files_names <- gsub("\\.png", "", files_names)
for (i in 1:length(files)) {
cat(paste0("### ", files_names[i], "\n"))
cat(paste0("![](", files[i], ")\n\n"))
cat(paste0("**Total percent change, 1970-2021:** ", dat_trends_1970to2021$Percent_Change[which(dat_trends_1970to2021$species == files_names[i])], "% (95% CI: ", dat_trends_1970to2021$Percent_Change_Q0.025[which(dat_trends_1970to2021$species == files_names[i])], "% to ", dat_trends_1970to2021$Percent_Change_Q0.975[which(dat_trends_1970to2021$species == files_names[i])], "%)", "\n\n"))
cat(paste0("**Annual trend (% change/year), 1970-2021:** ", dat_trends_1970to2021$Trend[which(dat_trends_1970to2021$species == files_names[i])], "% (95% CI: ", dat_trends_1970to2021$Trend_Q0.025[which(dat_trends_1970to2021$species == files_names[i])], "% to ", dat_trends_1970to2021$Trend_Q0.975[which(dat_trends_1970to2021$species == files_names[i])], "%)", "\n\n"))
cat(paste0("**Total percent change, 2011-2021:** ", dat_trends_2011to2021$Percent_Change[which(dat_trends_2011to2021$species == files_names[i])], "% (95% CI: ", dat_trends_2011to2021$Percent_Change_Q0.025[which(dat_trends_2011to2021$species == files_names[i])], "% to ", dat_trends_2011to2021$Percent_Change_Q0.975[which(dat_trends_2011to2021$species == files_names[i])], "%)", "\n\n"))
cat(paste0("**Annual trend (% change/year), 2011-2021:** ", dat_trends_2011to2021$Trend[which(dat_trends_2011to2021$species == files_names[i])], "% (95% CI: ", dat_trends_2011to2021$Trend_Q0.025[which(dat_trends_2011to2021$species == files_names[i])], "% to ", dat_trends_2011to2021$Trend_Q0.975[which(dat_trends_2011to2021$species == files_names[i])], "%)", "\n\n"))
}(Yellow-shafted Flicker) Northern Flicker
Total percent change, 1970-2021: -76.8% (95% CI: -85.8% to -66.7%)
Annual trend (% change/year), 1970-2021: -2.8% (95% CI: -3.7% to -2.1%)
Total percent change, 2011-2021: -18.7% (95% CI: -46.7% to 13.8%)
Annual trend (% change/year), 2011-2021: -2% (95% CI: -5.7% to 1.6%)
Alder Flycatcher
Total percent change, 1970-2021: % (95% CI: % to %)
Annual trend (% change/year), 1970-2021: % (95% CI: % to %)
Total percent change, 2011-2021: -7.08% (95% CI: -30.3% to 25.3%)
Annual trend (% change/year), 2011-2021: -0.7% (95% CI: -3.4% to 2.4%)
American Bittern
Total percent change, 1970-2021: -98.5% (95% CI: -99.9% to -95.2%)
Annual trend (% change/year), 1970-2021: -7.9% (95% CI: -10.6% to -5.4%)
Total percent change, 2011-2021: -29.5% (95% CI: -79.7% to 46.1%)
Annual trend (% change/year), 2011-2021: -3.4% (95% CI: -11.8% to 5.1%)
American Coot
Total percent change, 1970-2021: -86.8% (95% CI: -99.6% to -55.3%)
Annual trend (% change/year), 1970-2021: -3.9% (95% CI: -7.1% to -1.1%)
Total percent change, 2011-2021: -46.8% (95% CI: -84% to -7.29%)
Annual trend (% change/year), 2011-2021: -6.1% (95% CI: -15% to 0.4%)
American Crow
Total percent change, 1970-2021: 16.2% (95% CI: -7.61% to 50.6%)
Annual trend (% change/year), 1970-2021: 0.3% (95% CI: -0.2% to 0.8%)
Total percent change, 2011-2021: -21.4% (95% CI: -35.5% to -10.3%)
Annual trend (% change/year), 2011-2021: -2.4% (95% CI: -4.1% to -0.9%)
American Goldfinch
Total percent change, 1970-2021: 10.8% (95% CI: -19.9% to 50.6%)
Annual trend (% change/year), 1970-2021: 0.2% (95% CI: -0.4% to 0.8%)
Total percent change, 2011-2021: -31.3% (95% CI: -44.8% to -17.2%)
Annual trend (% change/year), 2011-2021: -3.7% (95% CI: -5.8% to -1.9%)
American Kestrel
Total percent change, 1970-2021: -75.6% (95% CI: -86.9% to -60%)
Annual trend (% change/year), 1970-2021: -2.7% (95% CI: -3.7% to -1.7%)
Total percent change, 2011-2021: -37.9% (95% CI: -60.8% to -17.4%)
Annual trend (% change/year), 2011-2021: -4.7% (95% CI: -8.3% to -1.5%)
American Redstart
Total percent change, 1970-2021: 122% (95% CI: 24.9% to 244%)
Annual trend (% change/year), 1970-2021: 1.6% (95% CI: 0.6% to 2.6%)
Total percent change, 2011-2021: 8.86% (95% CI: -24.3% to 39.9%)
Annual trend (% change/year), 2011-2021: 0.9% (95% CI: -2.8% to 3.4%)
American Robin
Total percent change, 1970-2021: 6.41% (95% CI: -10.7% to 25.1%)
Annual trend (% change/year), 1970-2021: 0.1% (95% CI: -0.2% to 0.5%)
Total percent change, 2011-2021: -20% (95% CI: -33.2% to -11.1%)
Annual trend (% change/year), 2011-2021: -2.2% (95% CI: -4% to -1.2%)
American White Pelican
Total percent change, 1970-2021: 12200% (95% CI: 447% to 141000%)
Annual trend (% change/year), 1970-2021: 9.9% (95% CI: 5.2% to 15.8%)
Total percent change, 2011-2021: 27.1% (95% CI: -57.1% to 163%)
Annual trend (% change/year), 2011-2021: 2.4% (95% CI: -5.5% to 11.9%)
American Woodcock
Total percent change, 1970-2021: -65.7% (95% CI: -99.6% to 26.1%)
Annual trend (% change/year), 1970-2021: -2.1% (95% CI: -5.8% to 1.2%)
Total percent change, 2011-2021: -16.1% (95% CI: -64% to 53%)
Annual trend (% change/year), 2011-2021: -1.7% (95% CI: -8.5% to 5.2%)
Bald Eagle
Total percent change, 1970-2021: 35500% (95% CI: 2820% to 413000%)
Annual trend (% change/year), 1970-2021: 12.2% (95% CI: 8.3% to 18.2%)
Total percent change, 2011-2021: 119% (95% CI: -2.08% to 241%)
Annual trend (% change/year), 2011-2021: 8.1% (95% CI: 2% to 14.3%)
Baltimore Oriole
Total percent change, 1970-2021: -31.6% (95% CI: -50.3% to -6.76%)
Annual trend (% change/year), 1970-2021: -0.7% (95% CI: -1.3% to -0.1%)
Total percent change, 2011-2021: -13.2% (95% CI: -27.8% to 5.77%)
Annual trend (% change/year), 2011-2021: -1.4% (95% CI: -3.1% to 0.7%)
Bank Swallow
Total percent change, 1970-2021: -89.7% (95% CI: -97.4% to -75.7%)
Annual trend (% change/year), 1970-2021: -4.3% (95% CI: -6.4% to -2.5%)
Total percent change, 2011-2021: 9.4% (95% CI: -49.1% to 101%)
Annual trend (% change/year), 2011-2021: 0.9% (95% CI: -4.9% to 8.2%)
Barn Swallow
Total percent change, 1970-2021: -7.16% (95% CI: -29.8% to 21.5%)
Annual trend (% change/year), 1970-2021: -0.1% (95% CI: -0.7% to 0.4%)
Total percent change, 2011-2021: -19.1% (95% CI: -31.9% to -7.19%)
Annual trend (% change/year), 2011-2021: -2.1% (95% CI: -3.8% to -0.7%)
Barred Owl
Total percent change, 1970-2021: 174% (95% CI: -32.8% to 544%)
Annual trend (% change/year), 1970-2021: 2% (95% CI: 0.1% to 4%)
Total percent change, 2011-2021: 22.5% (95% CI: -28.5% to 78%)
Annual trend (% change/year), 2011-2021: 2% (95% CI: -2.7% to 6.3%)
Belted Kingfisher
Total percent change, 1970-2021: -50.6% (95% CI: -73.2% to -28.9%)
Annual trend (% change/year), 1970-2021: -1.4% (95% CI: -2.4% to -0.5%)
Total percent change, 2011-2021: -10.5% (95% CI: -34.6% to 12.2%)
Annual trend (% change/year), 2011-2021: -1.1% (95% CI: -3.5% to 1.6%)
Black-and-white Warbler
Total percent change, 1970-2021: 49.8% (95% CI: -46.1% to 293%)
Annual trend (% change/year), 1970-2021: 0.8% (95% CI: -0.7% to 2.9%)
Total percent change, 2011-2021: 6.11% (95% CI: -34.1% to 59.9%)
Annual trend (% change/year), 2011-2021: 0.6% (95% CI: -3.4% to 5.2%)
Black-billed Cuckoo
Total percent change, 1970-2021: -68.8% (95% CI: -85.4% to -40.8%)
Annual trend (% change/year), 1970-2021: -2.3% (95% CI: -3.5% to -0.9%)
Total percent change, 2011-2021: -1.77% (95% CI: -37.5% to 50.2%)
Annual trend (% change/year), 2011-2021: -0.2% (95% CI: -4.2% to 4.4%)
Black-capped Chickadee
Total percent change, 1970-2021: 226% (95% CI: 98.5% to 405%)
Annual trend (% change/year), 1970-2021: 2.3% (95% CI: 1.4% to 3.3%)
Total percent change, 2011-2021: -4.92% (95% CI: -30.2% to 22.7%)
Annual trend (% change/year), 2011-2021: -0.5% (95% CI: -3.2% to 2.3%)
Black-crowned Night-Heron
Total percent change, 1970-2021: -97.9% (95% CI: -100% to -85.3%)
Annual trend (% change/year), 1970-2021: -7.3% (95% CI: -12% to -3%)
Total percent change, 2011-2021: -65.9% (95% CI: -97.4% to -11.2%)
Annual trend (% change/year), 2011-2021: -10.2% (95% CI: -23.2% to 0.9%)
Black Tern
Total percent change, 1970-2021: -96.8% (95% CI: -99.2% to -93.3%)
Annual trend (% change/year), 1970-2021: -6.5% (95% CI: -8.3% to -4.9%)
Total percent change, 2011-2021: -51.7% (95% CI: -75.2% to -22.5%)
Annual trend (% change/year), 2011-2021: -7% (95% CI: -12.1% to -2%)
Blue-gray Gnatcatcher
Total percent change, 1970-2021: 52.6% (95% CI: -52.7% to 335%)
Annual trend (% change/year), 1970-2021: 0.8% (95% CI: -0.8% to 3.2%)
Total percent change, 2011-2021: -16.1% (95% CI: -46.8% to 25.5%)
Annual trend (% change/year), 2011-2021: -1.7% (95% CI: -5.4% to 2.7%)
Blue-headed Vireo
Total percent change, 1970-2021: 411% (95% CI: -80.6% to 1750%)
Annual trend (% change/year), 1970-2021: 3.2% (95% CI: 0.5% to 6.6%)
Total percent change, 2011-2021: 11.2% (95% CI: -50% to 67.7%)
Annual trend (% change/year), 2011-2021: 1.1% (95% CI: -5.5% to 6%)
Blue-winged Teal
Total percent change, 1970-2021: -85% (95% CI: -94.7% to -69.7%)
Annual trend (% change/year), 1970-2021: -3.6% (95% CI: -5.2% to -2.2%)
Total percent change, 2011-2021: -32.9% (95% CI: -60.1% to -4.2%)
Annual trend (% change/year), 2011-2021: -3.9% (95% CI: -8.7% to -0.4%)
Blue-winged Warbler
Total percent change, 1970-2021: -1.01% (95% CI: -83.5% to 267%)
Annual trend (% change/year), 1970-2021: 0% (95% CI: -2.2% to 2.9%)
Total percent change, 2011-2021: -10.4% (95% CI: -49.4% to 59.1%)
Annual trend (% change/year), 2011-2021: -1.1% (95% CI: -5.8% to 5.4%)
Blue Jay
Total percent change, 1970-2021: 44.9% (95% CI: 0.177% to 105%)
Annual trend (% change/year), 1970-2021: 0.7% (95% CI: 0% to 1.4%)
Total percent change, 2011-2021: -4.39% (95% CI: -27.2% to 22.7%)
Annual trend (% change/year), 2011-2021: -0.4% (95% CI: -3% to 2.2%)
Bobolink
Total percent change, 1970-2021: -82.5% (95% CI: -89.4% to -73.3%)
Annual trend (% change/year), 1970-2021: -3.4% (95% CI: -4.2% to -2.5%)
Total percent change, 2011-2021: -37.4% (95% CI: -57.9% to -14.9%)
Annual trend (% change/year), 2011-2021: -4.6% (95% CI: -8% to -1.3%)
Brewer’s Blackbird
Total percent change, 1970-2021: -56.7% (95% CI: -78.8% to -30.5%)
Annual trend (% change/year), 1970-2021: -1.6% (95% CI: -2.8% to -0.5%)
Total percent change, 2011-2021: -28.6% (95% CI: -56.5% to -11.9%)
Annual trend (% change/year), 2011-2021: -3.3% (95% CI: -7.4% to -0.9%)
Broad-winged Hawk
Total percent change, 1970-2021: 148% (95% CI: -28.9% to 644%)
Annual trend (% change/year), 1970-2021: 1.8% (95% CI: 0.1% to 4.3%)
Total percent change, 2011-2021: 39.3% (95% CI: -14.8% to 147%)
Annual trend (% change/year), 2011-2021: 3.4% (95% CI: -1.1% to 9.8%)
Brown-headed Cowbird
Total percent change, 1970-2021: -50.5% (95% CI: -67.9% to -32.4%)
Annual trend (% change/year), 1970-2021: -1.4% (95% CI: -2.1% to -0.7%)
Total percent change, 2011-2021: -9.76% (95% CI: -34.8% to 14.3%)
Annual trend (% change/year), 2011-2021: -1% (95% CI: -4.1% to 1.4%)
Brown Thrasher
Total percent change, 1970-2021: -48.6% (95% CI: -63.9% to -31.2%)
Annual trend (% change/year), 1970-2021: -1.3% (95% CI: -2% to -0.7%)
Total percent change, 2011-2021: -17.3% (95% CI: -38.1% to -2.25%)
Annual trend (% change/year), 2011-2021: -1.9% (95% CI: -4.1% to 0.3%)
Canada Goose
Total percent change, 1970-2021: 73500% (95% CI: 18400% to 224000%)
Annual trend (% change/year), 1970-2021: 13.8% (95% CI: 11.7% to 16.6%)
Total percent change, 2011-2021: 2.31% (95% CI: -52.3% to 45.1%)
Annual trend (% change/year), 2011-2021: 0.2% (95% CI: -6.3% to 4.2%)
Caspian Tern
Total percent change, 1970-2021: 1.55% (95% CI: -99.3% to 248%)
Annual trend (% change/year), 1970-2021: 0% (95% CI: -3.9% to 3.3%)
Total percent change, 2011-2021: -43.8% (95% CI: -89.3% to -5.6%)
Annual trend (% change/year), 2011-2021: -5.6% (95% CI: -15.8% to 1%)
Cedar Waxwing
Total percent change, 1970-2021: 101% (95% CI: 12.1% to 195%)
Annual trend (% change/year), 1970-2021: 1.4% (95% CI: 0.4% to 2.2%)
Total percent change, 2011-2021: -33.4% (95% CI: -49.6% to -17.5%)
Annual trend (% change/year), 2011-2021: -4% (95% CI: -6.5% to -1.8%)
Cerulean Warbler
Total percent change, 1970-2021: -76.2% (95% CI: -100% to -14.1%)
Annual trend (% change/year), 1970-2021: -2.8% (95% CI: -7.3% to 0.8%)
Total percent change, 2011-2021: -1.14% (95% CI: -68.8% to 153%)
Annual trend (% change/year), 2011-2021: -0.1% (95% CI: -7.6% to 10.6%)
Chestnut-sided Warbler
Total percent change, 1970-2021: 218% (95% CI: -9.73% to 1020%)
Annual trend (% change/year), 1970-2021: 2.3% (95% CI: 0.2% to 5%)
Total percent change, 2011-2021: 2.72% (95% CI: -46.5% to 78.2%)
Annual trend (% change/year), 2011-2021: 0.3% (95% CI: -5.3% to 6.4%)
Chimney Swift
Total percent change, 1970-2021: -66.9% (95% CI: -76.4% to -55.4%)
Annual trend (% change/year), 1970-2021: -2.1% (95% CI: -2.7% to -1.5%)
Total percent change, 2011-2021: -20.9% (95% CI: -31.8% to -6.33%)
Annual trend (% change/year), 2011-2021: -2.3% (95% CI: -3.8% to -0.6%)
Chipping Sparrow
Total percent change, 1970-2021: -9.14% (95% CI: -28.7% to 14%)
Annual trend (% change/year), 1970-2021: -0.2% (95% CI: -0.7% to 0.3%)
Total percent change, 2011-2021: -27.3% (95% CI: -39.1% to -18.2%)
Annual trend (% change/year), 2011-2021: -3.1% (95% CI: -4.7% to -1.8%)
Clay-colored Sparrow
Total percent change, 1970-2021: -56.8% (95% CI: -74.7% to -36.4%)
Annual trend (% change/year), 1970-2021: -1.6% (95% CI: -2.6% to -0.9%)
Total percent change, 2011-2021: -34.5% (95% CI: -51.7% to -18.1%)
Annual trend (% change/year), 2011-2021: -4.1% (95% CI: -7% to -2%)
Cliff Swallow
Total percent change, 1970-2021: 743% (95% CI: 187% to 1760%)
Annual trend (% change/year), 1970-2021: 4.3% (95% CI: 2.5% to 6.1%)
Total percent change, 2011-2021: -23% (95% CI: -56.7% to 27%)
Annual trend (% change/year), 2011-2021: -2.6% (95% CI: -7.5% to 2.8%)
Common Grackle
Total percent change, 1970-2021: -79.9% (95% CI: -87.2% to -71.5%)
Annual trend (% change/year), 1970-2021: -3.1% (95% CI: -3.8% to -2.4%)
Total percent change, 2011-2021: -24.7% (95% CI: -43.1% to -1.44%)
Annual trend (% change/year), 2011-2021: -2.8% (95% CI: -5.4% to -0.1%)
Common Loon
Total percent change, 1970-2021: 118% (95% CI: 7.42% to 286%)
Annual trend (% change/year), 1970-2021: 1.5% (95% CI: 0.3% to 2.8%)
Total percent change, 2011-2021: -2.06% (95% CI: -35.5% to 31.3%)
Annual trend (% change/year), 2011-2021: -0.2% (95% CI: -3.5% to 3.3%)
Common Nighthawk
Total percent change, 1970-2021: -53.3% (95% CI: -87.9% to 29.7%)
Annual trend (% change/year), 1970-2021: -1.5% (95% CI: -3.3% to 0.8%)
Total percent change, 2011-2021: -0.0726% (95% CI: -44.4% to 49.8%)
Annual trend (% change/year), 2011-2021: 0% (95% CI: -5.4% to 4.4%)
Common Raven
Total percent change, 1970-2021: 11500% (95% CI: -41.6% to 258000%)
Annual trend (% change/year), 1970-2021: 9.8% (95% CI: 3.2% to 17.1%)
Total percent change, 2011-2021: 274% (95% CI: 3.97% to 981%)
Annual trend (% change/year), 2011-2021: 14.1% (95% CI: 1.8% to 27.6%)
Common Yellowthroat
Total percent change, 1970-2021: -24.8% (95% CI: -36.2% to -12.9%)
Annual trend (% change/year), 1970-2021: -0.6% (95% CI: -0.9% to -0.3%)
Total percent change, 2011-2021: -8.65% (95% CI: -18.4% to -0.542%)
Annual trend (% change/year), 2011-2021: -0.9% (95% CI: -2% to -0.1%)
Cooper’s Hawk
Total percent change, 1970-2021: 355% (95% CI: 22.4% to 1150%)
Annual trend (% change/year), 1970-2021: 3% (95% CI: 1.4% to 5.4%)
Total percent change, 2011-2021: -16.5% (95% CI: -56.7% to 16.3%)
Annual trend (% change/year), 2011-2021: -1.8% (95% CI: -7.5% to 1.9%)
Dickcissel
Total percent change, 1970-2021: -49.3% (95% CI: -89.3% to 30.3%)
Annual trend (% change/year), 1970-2021: -1.3% (95% CI: -3.4% to 0.9%)
Total percent change, 2011-2021: 176% (95% CI: -6.73% to 566%)
Annual trend (% change/year), 2011-2021: 10.7% (95% CI: 1% to 21.8%)
Double-crested Cormorant
Total percent change, 1970-2021: 1930% (95% CI: 454% to 4580%)
Annual trend (% change/year), 1970-2021: 6.1% (95% CI: 4% to 8.1%)
Total percent change, 2011-2021: -27.5% (95% CI: -60.2% to 5.25%)
Annual trend (% change/year), 2011-2021: -3.2% (95% CI: -7.6% to 1.2%)
Downy Woodpecker
Total percent change, 1970-2021: 49.7% (95% CI: -18% to 159%)
Annual trend (% change/year), 1970-2021: 0.8% (95% CI: -0.3% to 1.9%)
Total percent change, 2011-2021: -11.5% (95% CI: -35.2% to 13.9%)
Annual trend (% change/year), 2011-2021: -1.2% (95% CI: -4.1% to 1.4%)
Eastern Bluebird
Total percent change, 1970-2021: 150% (95% CI: 41.5% to 279%)
Annual trend (% change/year), 1970-2021: 1.8% (95% CI: 0.8% to 2.7%)
Total percent change, 2011-2021: -46.3% (95% CI: -67.2% to -26.1%)
Annual trend (% change/year), 2011-2021: -6% (95% CI: -9.9% to -2.4%)
Eastern Kingbird
Total percent change, 1970-2021: -60% (95% CI: -73.7% to -44.7%)
Annual trend (% change/year), 1970-2021: -1.8% (95% CI: -2.5% to -1.1%)
Total percent change, 2011-2021: -12.9% (95% CI: -30.2% to 1.98%)
Annual trend (% change/year), 2011-2021: -1.4% (95% CI: -3.5% to 0.2%)
Eastern Meadowlark
Total percent change, 1970-2021: -61.5% (95% CI: -78.7% to -38.7%)
Annual trend (% change/year), 1970-2021: -1.9% (95% CI: -2.8% to -0.9%)
Total percent change, 2011-2021: -36.9% (95% CI: -55% to -16.1%)
Annual trend (% change/year), 2011-2021: -4.5% (95% CI: -7.7% to -1.7%)
Eastern Phoebe
Total percent change, 1970-2021: -1.73% (95% CI: -36.3% to 47.1%)
Annual trend (% change/year), 1970-2021: 0% (95% CI: -0.9% to 0.8%)
Total percent change, 2011-2021: -29.1% (95% CI: -52.2% to -13.2%)
Annual trend (% change/year), 2011-2021: -3.4% (95% CI: -6.9% to -1.2%)
Eastern Towhee
Total percent change, 1970-2021: -25.9% (95% CI: -61.3% to 47.9%)
Annual trend (% change/year), 1970-2021: -0.6% (95% CI: -1.8% to 0.8%)
Total percent change, 2011-2021: -9.74% (95% CI: -34.3% to 30.4%)
Annual trend (% change/year), 2011-2021: -1% (95% CI: -3.8% to 3%)
Eastern Whip-poor-will
Total percent change, 1970-2021: -75.9% (95% CI: -100% to 77.9%)
Annual trend (% change/year), 1970-2021: -2.8% (95% CI: -7.2% to 2.4%)
Total percent change, 2011-2021: -26% (95% CI: -99.6% to 27.2%)
Annual trend (% change/year), 2011-2021: -3% (95% CI: -20.1% to 5.2%)
Eastern Wood-Pewee
Total percent change, 1970-2021: 4.39% (95% CI: -23.2% to 38.1%)
Annual trend (% change/year), 1970-2021: 0.1% (95% CI: -0.5% to 0.6%)
Total percent change, 2011-2021: 3.08% (95% CI: -16.8% to 21.4%)
Annual trend (% change/year), 2011-2021: 0.3% (95% CI: -1.7% to 2%)
Eurasian Collared-Dove
Total percent change, 1970-2021: % (95% CI: % to %)
Annual trend (% change/year), 1970-2021: % (95% CI: % to %)
Total percent change, 2011-2021: 105% (95% CI: -53.1% to 303%)
Annual trend (% change/year), 2011-2021: 7.5% (95% CI: -1.6% to 17.5%)
European Starling
Total percent change, 1970-2021: -62.5% (95% CI: -74.6% to -48.2%)
Annual trend (% change/year), 1970-2021: -1.9% (95% CI: -2.6% to -1.3%)
Total percent change, 2011-2021: -20.5% (95% CI: -35.8% to -7.38%)
Annual trend (% change/year), 2011-2021: -2.3% (95% CI: -4.3% to -0.7%)
Field Sparrow
Total percent change, 1970-2021: -68% (95% CI: -81.5% to -52%)
Annual trend (% change/year), 1970-2021: -2.2% (95% CI: -3% to -1.3%)
Total percent change, 2011-2021: -26.8% (95% CI: -45.8% to -5.93%)
Annual trend (% change/year), 2011-2021: -3.1% (95% CI: -5.7% to -0.4%)
Forster’s Tern
Total percent change, 1970-2021: 105% (95% CI: -81.3% to 1500%)
Annual trend (% change/year), 1970-2021: 1.4% (95% CI: -1.8% to 6.2%)
Total percent change, 2011-2021: -14.8% (95% CI: -70.5% to 103%)
Annual trend (% change/year), 2011-2021: -1.6% (95% CI: -7.9% to 9.3%)
Franklin’s Gull
Total percent change, 1970-2021: -68.8% (95% CI: -100% to 61%)
Annual trend (% change/year), 1970-2021: -2.3% (95% CI: -8% to 2.3%)
Total percent change, 2011-2021: 35.1% (95% CI: -84% to 176%)
Annual trend (% change/year), 2011-2021: 3.1% (95% CI: -10.8% to 12.7%)
Gadwall
Total percent change, 1970-2021: -56.2% (95% CI: -100% to 285%)
Annual trend (% change/year), 1970-2021: -1.6% (95% CI: -11.5% to 4.3%)
Total percent change, 2011-2021: -55.2% (95% CI: -100% to 6.52%)
Annual trend (% change/year), 2011-2021: -7.7% (95% CI: -33.2% to 2.8%)
Golden-winged Warbler
Total percent change, 1970-2021: 24.8% (95% CI: -95.1% to 409%)
Annual trend (% change/year), 1970-2021: 0.4% (95% CI: -3.1% to 3.5%)
Total percent change, 2011-2021: -22.4% (95% CI: -82.2% to 72%)
Annual trend (% change/year), 2011-2021: -2.5% (95% CI: -12% to 7.4%)
Grasshopper Sparrow
Total percent change, 1970-2021: -98.2% (95% CI: -99.5% to -96.1%)
Annual trend (% change/year), 1970-2021: -7.6% (95% CI: -9.2% to -6%)
Total percent change, 2011-2021: -58.4% (95% CI: -78.1% to -35.8%)
Annual trend (% change/year), 2011-2021: -8.4% (95% CI: -13.2% to -3.8%)
Gray Catbird
Total percent change, 1970-2021: 6.77% (95% CI: -15.7% to 30%)
Annual trend (% change/year), 1970-2021: 0.1% (95% CI: -0.3% to 0.5%)
Total percent change, 2011-2021: -2.91% (95% CI: -16.6% to 8.52%)
Annual trend (% change/year), 2011-2021: -0.3% (95% CI: -1.7% to 0.9%)
Gray Partridge
Total percent change, 1970-2021: -3.89% (95% CI: -99% to 201%)
Annual trend (% change/year), 1970-2021: -0.1% (95% CI: -4% to 3.1%)
Total percent change, 2011-2021: -10.5% (95% CI: -85.9% to 58.4%)
Annual trend (% change/year), 2011-2021: -1.1% (95% CI: -13.4% to 6.3%)
Great Blue Heron
Total percent change, 1970-2021: -62.8% (95% CI: -80.3% to -43.2%)
Annual trend (% change/year), 1970-2021: -1.9% (95% CI: -2.8% to -0.9%)
Total percent change, 2011-2021: -11% (95% CI: -38.5% to 23.7%)
Annual trend (% change/year), 2011-2021: -1.2% (95% CI: -4.5% to 2.3%)
Great Crested Flycatcher
Total percent change, 1970-2021: 11.6% (95% CI: -16.9% to 44.8%)
Annual trend (% change/year), 1970-2021: 0.2% (95% CI: -0.3% to 0.7%)
Total percent change, 2011-2021: 3.04% (95% CI: -23.5% to 19.1%)
Annual trend (% change/year), 2011-2021: 0.3% (95% CI: -2.6% to 1.8%)
Great Egret
Total percent change, 1970-2021: 263% (95% CI: -17.6% to 782%)
Annual trend (% change/year), 1970-2021: 2.6% (95% CI: 0.4% to 4.8%)
Total percent change, 2011-2021: -26.4% (95% CI: -62.9% to 20.3%)
Annual trend (% change/year), 2011-2021: -3% (95% CI: -8.3% to 2.7%)
Great Horned Owl
Total percent change, 1970-2021: -8.66% (95% CI: -75.3% to 80.9%)
Annual trend (% change/year), 1970-2021: -0.2% (95% CI: -2.1% to 1.4%)
Total percent change, 2011-2021: -10.3% (95% CI: -57.5% to 21.2%)
Annual trend (% change/year), 2011-2021: -1.1% (95% CI: -6.7% to 2.7%)
Green-winged Teal
Total percent change, 1970-2021: -64% (95% CI: -99.9% to 11.8%)
Annual trend (% change/year), 1970-2021: -2% (95% CI: -6.5% to 0.7%)
Total percent change, 2011-2021: -11.1% (95% CI: -69.5% to 58.6%)
Annual trend (% change/year), 2011-2021: -1.2% (95% CI: -10.2% to 5.4%)
Green Heron
Total percent change, 1970-2021: -10.3% (95% CI: -55.5% to 50%)
Annual trend (% change/year), 1970-2021: -0.2% (95% CI: -1.3% to 0.9%)
Total percent change, 2011-2021: -12.4% (95% CI: -38.2% to 16.2%)
Annual trend (% change/year), 2011-2021: -1.3% (95% CI: -4.3% to 1.8%)
Hairy Woodpecker
Total percent change, 1970-2021: 43.1% (95% CI: -24.5% to 133%)
Annual trend (% change/year), 1970-2021: 0.7% (95% CI: -0.3% to 1.8%)
Total percent change, 2011-2021: 4.72% (95% CI: -21.2% to 44.1%)
Annual trend (% change/year), 2011-2021: 0.5% (95% CI: -1.7% to 4.2%)
Henslow’s Sparrow
Total percent change, 1970-2021: -84.1% (95% CI: -99.8% to -42.9%)
Annual trend (% change/year), 1970-2021: -3.5% (95% CI: -7% to -0.6%)
Total percent change, 2011-2021: -46.2% (95% CI: -79% to -2.28%)
Annual trend (% change/year), 2011-2021: -6% (95% CI: -12.7% to 0.4%)
Hooded Merganser
Total percent change, 1970-2021: 1660% (95% CI: 57% to 10700%)
Annual trend (% change/year), 1970-2021: 5.8% (95% CI: 2.9% to 10%)
Total percent change, 2011-2021: 5.46% (95% CI: -72.1% to 76.6%)
Annual trend (% change/year), 2011-2021: 0.5% (95% CI: -9% to 7.1%)
Horned Lark
Total percent change, 1970-2021: -37% (95% CI: -61.6% to -7.51%)
Annual trend (% change/year), 1970-2021: -0.9% (95% CI: -1.7% to -0.1%)
Total percent change, 2011-2021: -10.2% (95% CI: -33.9% to 14.6%)
Annual trend (% change/year), 2011-2021: -1.1% (95% CI: -3.5% to 1.7%)
House Finch
Total percent change, 1970-2021: 7640000% (95% CI: 28900% to 5.77e+08%)
Annual trend (% change/year), 1970-2021: 24.7% (95% CI: 16.6% to 36.6%)
Total percent change, 2011-2021: -36.4% (95% CI: -69.6% to 12.3%)
Annual trend (% change/year), 2011-2021: -4.4% (95% CI: -10.3% to 1.9%)
House Sparrow
Total percent change, 1970-2021: -84.5% (95% CI: -89.6% to -77.5%)
Annual trend (% change/year), 1970-2021: -3.6% (95% CI: -4.3% to -2.8%)
Total percent change, 2011-2021: -26.4% (95% CI: -44.8% to -1.95%)
Annual trend (% change/year), 2011-2021: -3% (95% CI: -5.7% to -0.1%)
House Wren
Total percent change, 1970-2021: 32.8% (95% CI: 2.17% to 61.5%)
Annual trend (% change/year), 1970-2021: 0.6% (95% CI: 0.1% to 1%)
Total percent change, 2011-2021: 13.2% (95% CI: -6.94% to 29.8%)
Annual trend (% change/year), 2011-2021: 1.2% (95% CI: -0.6% to 2.8%)
Indigo Bunting
Total percent change, 1970-2021: -15% (95% CI: -40.6% to 18%)
Annual trend (% change/year), 1970-2021: -0.3% (95% CI: -1% to 0.3%)
Total percent change, 2011-2021: 1.42% (95% CI: -26.7% to 34.6%)
Annual trend (% change/year), 2011-2021: 0.1% (95% CI: -2.9% to 3.2%)
Killdeer
Total percent change, 1970-2021: -46% (95% CI: -59.1% to -33.4%)
Annual trend (% change/year), 1970-2021: -1.2% (95% CI: -1.7% to -0.8%)
Total percent change, 2011-2021: -22.5% (95% CI: -32.5% to -11.7%)
Annual trend (% change/year), 2011-2021: -2.5% (95% CI: -3.7% to -1.1%)
Lark Sparrow
Total percent change, 1970-2021: 136% (95% CI: -79.6% to 1720%)
Annual trend (% change/year), 1970-2021: 1.7% (95% CI: -1.7% to 6%)
Total percent change, 2011-2021: -0.673% (95% CI: -53.2% to 123%)
Annual trend (% change/year), 2011-2021: -0.1% (95% CI: -5.7% to 9.4%)
Least Bittern
Total percent change, 1970-2021: -41.6% (95% CI: -100% to 78.3%)
Annual trend (% change/year), 1970-2021: -1% (95% CI: -6.1% to 2.1%)
Total percent change, 2011-2021: -13.5% (95% CI: -83.6% to 36.4%)
Annual trend (% change/year), 2011-2021: -1.4% (95% CI: -13.7% to 4%)
Least Flycatcher
Total percent change, 1970-2021: -48.2% (95% CI: -71.1% to -22.2%)
Annual trend (% change/year), 1970-2021: -1.3% (95% CI: -2.2% to -0.4%)
Total percent change, 2011-2021: -15.7% (95% CI: -49.8% to 7.33%)
Annual trend (% change/year), 2011-2021: -1.7% (95% CI: -6% to 1.2%)
LeConte’s Sparrow
Total percent change, 1970-2021: -58.2% (95% CI: -98% to 18.1%)
Annual trend (% change/year), 1970-2021: -1.7% (95% CI: -5.2% to 0.8%)
Total percent change, 2011-2021: -60.9% (95% CI: -85.8% to -33.2%)
Annual trend (% change/year), 2011-2021: -9% (95% CI: -16.4% to -3.4%)
Lesser Scaup
Total percent change, 1970-2021: -1.9% (95% CI: -99.1% to 384%)
Annual trend (% change/year), 1970-2021: 0% (95% CI: -3.6% to 3.9%)
Total percent change, 2011-2021: 4.04% (95% CI: -59.6% to 229%)
Annual trend (% change/year), 2011-2021: 0.4% (95% CI: -6.3% to 13.6%)
Loggerhead Shrike
Total percent change, 1970-2021: -91.2% (95% CI: -99.9% to -74.6%)
Annual trend (% change/year), 1970-2021: -4.7% (95% CI: -8.8% to -1.9%)
Total percent change, 2011-2021: -23.6% (95% CI: -71.1% to 83.8%)
Annual trend (% change/year), 2011-2021: -2.6% (95% CI: -9.5% to 7.4%)
Mallard
Total percent change, 1970-2021: -5.97% (95% CI: -56.8% to 64.6%)
Annual trend (% change/year), 1970-2021: -0.1% (95% CI: -1.4% to 1.1%)
Total percent change, 2011-2021: -25.7% (95% CI: -49.5% to -0.137%)
Annual trend (% change/year), 2011-2021: -2.9% (95% CI: -5.9% to 0.5%)
Marsh Wren
Total percent change, 1970-2021: -45.9% (95% CI: -85.5% to 18.7%)
Annual trend (% change/year), 1970-2021: -1.2% (95% CI: -2.9% to 0.7%)
Total percent change, 2011-2021: 19.3% (95% CI: -28.9% to 89.7%)
Annual trend (% change/year), 2011-2021: 1.8% (95% CI: -3.4% to 6.6%)
Mourning Dove
Total percent change, 1970-2021: -61.1% (95% CI: -70.3% to -51.7%)
Annual trend (% change/year), 1970-2021: -1.8% (95% CI: -2.3% to -1.4%)
Total percent change, 2011-2021: -14.3% (95% CI: -29.4% to -0.509%)
Annual trend (% change/year), 2011-2021: -1.5% (95% CI: -3.3% to 0.1%)
Mourning Warbler
Total percent change, 1970-2021: -76.3% (95% CI: -94.4% to -42.6%)
Annual trend (% change/year), 1970-2021: -2.8% (95% CI: -4.8% to -0.8%)
Total percent change, 2011-2021: -31.8% (95% CI: -73.3% to 6.81%)
Annual trend (% change/year), 2011-2021: -3.8% (95% CI: -10.9% to 1.4%)
Nashville Warbler
Total percent change, 1970-2021: -81.5% (95% CI: -97.8% to -46.7%)
Annual trend (% change/year), 1970-2021: -3.2% (95% CI: -5.6% to -0.6%)
Total percent change, 2011-2021: -31.3% (95% CI: -67.7% to 20.9%)
Annual trend (% change/year), 2011-2021: -3.7% (95% CI: -10.1% to 2.2%)
Northern Bobwhite
Total percent change, 1970-2021: -91.2% (95% CI: -99.4% to -62.5%)
Annual trend (% change/year), 1970-2021: -4.7% (95% CI: -7.1% to -1.4%)
Total percent change, 2011-2021: -33.2% (95% CI: -67.6% to 24.4%)
Annual trend (% change/year), 2011-2021: -4% (95% CI: -9.9% to 2.7%)
Northern Cardinal
Total percent change, 1970-2021: 334% (95% CI: 179% to 531%)
Annual trend (% change/year), 1970-2021: 2.9% (95% CI: 2.2% to 3.8%)
Total percent change, 2011-2021: 20.4% (95% CI: -10.3% to 67.7%)
Annual trend (% change/year), 2011-2021: 1.9% (95% CI: -0.8% to 5.5%)
Northern Flicker (all forms)
Total percent change, 1970-2021: % (95% CI: % to %)
Annual trend (% change/year), 1970-2021: % (95% CI: % to %)
Total percent change, 2011-2021: % (95% CI: % to %)
Annual trend (% change/year), 2011-2021: % (95% CI: % to %)
Northern Flicker
Total percent change, 1970-2021: -75.8% (95% CI: -85% to -64.6%)
Annual trend (% change/year), 1970-2021: -2.8% (95% CI: -3.6% to -2%)
Total percent change, 2011-2021: -16.9% (95% CI: -46.2% to 15.7%)
Annual trend (% change/year), 2011-2021: -1.8% (95% CI: -5.7% to 1.7%)
Northern Harrier
Total percent change, 1970-2021: -27.4% (95% CI: -68.1% to 25.3%)
Annual trend (% change/year), 1970-2021: -0.6% (95% CI: -1.9% to 0.6%)
Total percent change, 2011-2021: -12.8% (95% CI: -42.2% to 31.4%)
Annual trend (% change/year), 2011-2021: -1.4% (95% CI: -5% to 3%)
Northern Rough-winged Swallow
Total percent change, 1970-2021: -62.6% (95% CI: -88% to -22.7%)
Annual trend (% change/year), 1970-2021: -1.9% (95% CI: -3.6% to -0.3%)
Total percent change, 2011-2021: -19% (95% CI: -48.9% to 18.4%)
Annual trend (% change/year), 2011-2021: -2.1% (95% CI: -6.5% to 1.7%)
Northern Shoveler
Total percent change, 1970-2021: 30.7% (95% CI: -97.3% to 307%)
Annual trend (% change/year), 1970-2021: 0.5% (95% CI: -1.9% to 3.5%)
Total percent change, 2011-2021: -24.2% (95% CI: -64.6% to 25.2%)
Annual trend (% change/year), 2011-2021: -2.7% (95% CI: -8.7% to 3.2%)
Olive-sided Flycatcher
Total percent change, 1970-2021: 45.9% (95% CI: -96.3% to 2810%)
Annual trend (% change/year), 1970-2021: 0.7% (95% CI: -3.6% to 7.3%)
Total percent change, 2011-2021: -1.74% (95% CI: -81.1% to 166%)
Annual trend (% change/year), 2011-2021: -0.2% (95% CI: -9.8% to 12.4%)
Orchard Oriole
Total percent change, 1970-2021: 386% (95% CI: -33.8% to 2720%)
Annual trend (% change/year), 1970-2021: 3.1% (95% CI: -0.1% to 7.2%)
Total percent change, 2011-2021: -1.35% (95% CI: -52.3% to 114%)
Annual trend (% change/year), 2011-2021: -0.1% (95% CI: -6.5% to 8.5%)
Osprey
Total percent change, 1970-2021: 2660% (95% CI: 84.3% to 29800%)
Annual trend (% change/year), 1970-2021: 6.7% (95% CI: 3.8% to 12.2%)
Total percent change, 2011-2021: 30.9% (95% CI: -47.1% to 132%)
Annual trend (% change/year), 2011-2021: 2.7% (95% CI: -4.1% to 9.9%)
Ovenbird
Total percent change, 1970-2021: 154% (95% CI: 64.3% to 280%)
Annual trend (% change/year), 1970-2021: 1.8% (95% CI: 1% to 2.7%)
Total percent change, 2011-2021: -0.361% (95% CI: -22.6% to 25.2%)
Annual trend (% change/year), 2011-2021: 0% (95% CI: -2.3% to 2.5%)
Pied-billed Grebe
Total percent change, 1970-2021: -72.4% (95% CI: -92.6% to -39.7%)
Annual trend (% change/year), 1970-2021: -2.5% (95% CI: -4.4% to -0.7%)
Total percent change, 2011-2021: -36% (95% CI: -64.9% to 4.78%)
Annual trend (% change/year), 2011-2021: -4.4% (95% CI: -9.8% to 0.6%)
Pileated Woodpecker
Total percent change, 1970-2021: 443% (95% CI: 172% to 914%)
Annual trend (% change/year), 1970-2021: 3.4% (95% CI: 2.1% to 4.7%)
Total percent change, 2011-2021: 65.6% (95% CI: 4.45% to 187%)
Annual trend (% change/year), 2011-2021: 5.2% (95% CI: 1% to 11.4%)
Pine Warbler
Total percent change, 1970-2021: 276% (95% CI: 26.8% to 745%)
Annual trend (% change/year), 1970-2021: 2.6% (95% CI: 1.3% to 4.6%)
Total percent change, 2011-2021: 6.98% (95% CI: -27.2% to 50.4%)
Annual trend (% change/year), 2011-2021: 0.7% (95% CI: -2.9% to 4.3%)
Purple Finch
Total percent change, 1970-2021: 22.9% (95% CI: -81.7% to 547%)
Annual trend (% change/year), 1970-2021: 0.4% (95% CI: -2.2% to 4%)
Total percent change, 2011-2021: 18.8% (95% CI: -46.6% to 193%)
Annual trend (% change/year), 2011-2021: 1.7% (95% CI: -4% to 12.4%)
Purple Martin
Total percent change, 1970-2021: -76.4% (95% CI: -91.1% to -51%)
Annual trend (% change/year), 1970-2021: -2.8% (95% CI: -4.2% to -1.2%)
Total percent change, 2011-2021: 54.2% (95% CI: -25.4% to 200%)
Annual trend (% change/year), 2011-2021: 4.4% (95% CI: -1.7% to 12.3%)
Red-bellied Woodpecker
Total percent change, 1970-2021: 711% (95% CI: 354% to 1180%)
Annual trend (% change/year), 1970-2021: 4.2% (95% CI: 3.2% to 5.3%)
Total percent change, 2011-2021: 12.2% (95% CI: -17.9% to 47.9%)
Annual trend (% change/year), 2011-2021: 1.2% (95% CI: -2% to 4%)
Red-breasted Nuthatch
Total percent change, 1970-2021: 1790% (95% CI: 322% to 6290%)
Annual trend (% change/year), 1970-2021: 5.9% (95% CI: 3.2% to 8.7%)
Total percent change, 2011-2021: 59.8% (95% CI: -21.6% to 163%)
Annual trend (% change/year), 2011-2021: 4.8% (95% CI: -1.3% to 10.7%)
Red-eyed Vireo
Total percent change, 1970-2021: 101% (95% CI: 42.5% to 169%)
Annual trend (% change/year), 1970-2021: 1.4% (95% CI: 0.7% to 2%)
Total percent change, 2011-2021: -9.45% (95% CI: -30% to 10.6%)
Annual trend (% change/year), 2011-2021: -1% (95% CI: -3.3% to 1.2%)
Red-headed Woodpecker
Total percent change, 1970-2021: -95% (95% CI: -97.9% to -91.1%)
Annual trend (% change/year), 1970-2021: -5.7% (95% CI: -7% to -4.5%)
Total percent change, 2011-2021: -44.3% (95% CI: -73.6% to -13.1%)
Annual trend (% change/year), 2011-2021: -5.7% (95% CI: -11.1% to -0.7%)
Red-necked Grebe
Total percent change, 1970-2021: 24.6% (95% CI: -99% to 1040%)
Annual trend (% change/year), 1970-2021: 0.4% (95% CI: -3.5% to 5.9%)
Total percent change, 2011-2021: -32.2% (95% CI: -96.9% to 12%)
Annual trend (% change/year), 2011-2021: -3.8% (95% CI: -18.6% to 3.8%)
Red-shouldered Hawk
Total percent change, 1970-2021: 686% (95% CI: 50.4% to 3160%)
Annual trend (% change/year), 1970-2021: 4.1% (95% CI: 1.8% to 7.3%)
Total percent change, 2011-2021: 46.2% (95% CI: -27.9% to 176%)
Annual trend (% change/year), 2011-2021: 3.9% (95% CI: -1.4% to 11.4%)
Red-tailed Hawk (all forms)
Total percent change, 1970-2021: % (95% CI: % to %)
Annual trend (% change/year), 1970-2021: % (95% CI: % to %)
Total percent change, 2011-2021: % (95% CI: % to %)
Annual trend (% change/year), 2011-2021: % (95% CI: % to %)
Red-tailed Hawk
Total percent change, 1970-2021: 182% (95% CI: 91.5% to 328%)
Annual trend (% change/year), 1970-2021: 2% (95% CI: 1.3% to 2.9%)
Total percent change, 2011-2021: 2.95% (95% CI: -21.1% to 21.3%)
Annual trend (% change/year), 2011-2021: 0.3% (95% CI: -2% to 2.2%)
Red-winged Blackbird
Total percent change, 1970-2021: -52.8% (95% CI: -63.3% to -40.1%)
Annual trend (% change/year), 1970-2021: -1.5% (95% CI: -1.9% to -1%)
Total percent change, 2011-2021: -2.25% (95% CI: -16.2% to 15.9%)
Annual trend (% change/year), 2011-2021: -0.2% (95% CI: -1.6% to 1.6%)
Redhead
Total percent change, 1970-2021: -42.1% (95% CI: -100% to 64.2%)
Annual trend (% change/year), 1970-2021: -1.1% (95% CI: -6.3% to 1.7%)
Total percent change, 2011-2021: -25.3% (95% CI: -83.1% to 21.4%)
Annual trend (% change/year), 2011-2021: -2.9% (95% CI: -12.9% to 3.6%)
Ring-billed Gull
Total percent change, 1970-2021: 365% (95% CI: -62.1% to 2400%)
Annual trend (% change/year), 1970-2021: 3.1% (95% CI: 0.5% to 7.3%)
Total percent change, 2011-2021: -57.2% (95% CI: -86.1% to -26.5%)
Annual trend (% change/year), 2011-2021: -8.1% (95% CI: -17.1% to -2.7%)
Ring-necked Duck
Total percent change, 1970-2021: 125% (95% CI: -73.8% to 506%)
Annual trend (% change/year), 1970-2021: 1.6% (95% CI: -1.3% to 4%)
Total percent change, 2011-2021: 9.45% (95% CI: -54.2% to 79.3%)
Annual trend (% change/year), 2011-2021: 0.9% (95% CI: -5% to 7.2%)
Ring-necked Pheasant
Total percent change, 1970-2021: -41.9% (95% CI: -66.8% to -6.98%)
Annual trend (% change/year), 1970-2021: -1.1% (95% CI: -2% to 0%)
Total percent change, 2011-2021: -30.6% (95% CI: -52.4% to -3.52%)
Annual trend (% change/year), 2011-2021: -3.6% (95% CI: -6.9% to -0.1%)
Rock Pigeon
Total percent change, 1970-2021: 2.92% (95% CI: -40.9% to 74.1%)
Annual trend (% change/year), 1970-2021: 0.1% (95% CI: -0.8% to 1.2%)
Total percent change, 2011-2021: 3.74% (95% CI: -18.7% to 45.3%)
Annual trend (% change/year), 2011-2021: 0.4% (95% CI: -2% to 3.8%)
Rose-breasted Grosbeak
Total percent change, 1970-2021: 17.9% (95% CI: -16.4% to 56.3%)
Annual trend (% change/year), 1970-2021: 0.3% (95% CI: -0.3% to 0.9%)
Total percent change, 2011-2021: 7.63% (95% CI: -12.5% to 31.7%)
Annual trend (% change/year), 2011-2021: 0.7% (95% CI: -0.9% to 3.1%)
Ruby-throated Hummingbird
Total percent change, 1970-2021: 167% (95% CI: 10.8% to 475%)
Annual trend (% change/year), 1970-2021: 1.9% (95% CI: 0.5% to 3.6%)
Total percent change, 2011-2021: -0.776% (95% CI: -32.4% to 46.7%)
Annual trend (% change/year), 2011-2021: -0.1% (95% CI: -3.5% to 4.2%)
Ruddy Duck
Total percent change, 1970-2021: -12.7% (95% CI: -99.1% to 122%)
Annual trend (% change/year), 1970-2021: -0.3% (95% CI: -4.3% to 2.4%)
Total percent change, 2011-2021: -2.67% (95% CI: -73.2% to 61.7%)
Annual trend (% change/year), 2011-2021: -0.3% (95% CI: -8% to 7.5%)
Ruffed Grouse
Total percent change, 1970-2021: -39.6% (95% CI: -93.6% to 20.7%)
Annual trend (% change/year), 1970-2021: -1% (95% CI: -3.4% to 1%)
Total percent change, 2011-2021: 0.477% (95% CI: -47.8% to 58.2%)
Annual trend (% change/year), 2011-2021: 0% (95% CI: -5.2% to 5.6%)
Sandhill Crane
Total percent change, 1970-2021: 1730000% (95% CI: 9320% to 3.8e+07%)
Annual trend (% change/year), 1970-2021: 21.1% (95% CI: 13.3% to 29.5%)
Total percent change, 2011-2021: 97.3% (95% CI: -12.8% to 248%)
Annual trend (% change/year), 2011-2021: 7% (95% CI: -0.1% to 14%)
Savannah Sparrow
Total percent change, 1970-2021: -87.7% (95% CI: -92.6% to -81.8%)
Annual trend (% change/year), 1970-2021: -4% (95% CI: -4.8% to -3.2%)
Total percent change, 2011-2021: -63.9% (95% CI: -76.8% to -45.9%)
Annual trend (% change/year), 2011-2021: -9.7% (95% CI: -13.1% to -5.6%)
Scarlet Tanager
Total percent change, 1970-2021: 34.5% (95% CI: -21.1% to 147%)
Annual trend (% change/year), 1970-2021: 0.6% (95% CI: -0.4% to 1.8%)
Total percent change, 2011-2021: -7.22% (95% CI: -31.1% to 34.2%)
Annual trend (% change/year), 2011-2021: -0.7% (95% CI: -3.6% to 3%)
Sedge Wren
Total percent change, 1970-2021: -44.3% (95% CI: -73.7% to -9.41%)
Annual trend (% change/year), 1970-2021: -1.1% (95% CI: -2.3% to 0%)
Total percent change, 2011-2021: -11.6% (95% CI: -40.3% to 24.8%)
Annual trend (% change/year), 2011-2021: -1.2% (95% CI: -4.5% to 2.6%)
Sharp-shinned Hawk
Total percent change, 1970-2021: 41% (95% CI: -85.9% to 272%)
Annual trend (% change/year), 1970-2021: 0.7% (95% CI: -2.1% to 3.1%)
Total percent change, 2011-2021: -30.3% (95% CI: -71% to 4.54%)
Annual trend (% change/year), 2011-2021: -3.5% (95% CI: -10% to 1.5%)
Song Sparrow
Total percent change, 1970-2021: -15.6% (95% CI: -36.9% to 6.72%)
Annual trend (% change/year), 1970-2021: -0.3% (95% CI: -0.9% to 0.1%)
Total percent change, 2011-2021: -17.5% (95% CI: -34.8% to 0.49%)
Annual trend (% change/year), 2011-2021: -1.9% (95% CI: -4.1% to 0.1%)
Sora
Total percent change, 1970-2021: -47.3% (95% CI: -79.3% to 6.32%)
Annual trend (% change/year), 1970-2021: -1.2% (95% CI: -2.7% to 0.3%)
Total percent change, 2011-2021: -21.1% (95% CI: -54.5% to 15.4%)
Annual trend (% change/year), 2011-2021: -2.3% (95% CI: -7.2% to 1.8%)
Spotted Sandpiper
Total percent change, 1970-2021: -66.4% (95% CI: -93.6% to -39.6%)
Annual trend (% change/year), 1970-2021: -2.1% (95% CI: -4.2% to -0.6%)
Total percent change, 2011-2021: -8.98% (95% CI: -45.9% to 35.8%)
Annual trend (% change/year), 2011-2021: -0.9% (95% CI: -5.4% to 3.4%)
Swamp Sparrow
Total percent change, 1970-2021: 218% (95% CI: 88.1% to 415%)
Annual trend (% change/year), 1970-2021: 2.3% (95% CI: 1.4% to 3.4%)
Total percent change, 2011-2021: 10.8% (95% CI: -21.2% to 42.6%)
Annual trend (% change/year), 2011-2021: 1% (95% CI: -2.2% to 3.8%)
Tree Swallow
Total percent change, 1970-2021: 150% (95% CI: 61.1% to 283%)
Annual trend (% change/year), 1970-2021: 1.8% (95% CI: 1% to 2.7%)
Total percent change, 2011-2021: -19.8% (95% CI: -41.6% to 1.32%)
Annual trend (% change/year), 2011-2021: -2.2% (95% CI: -5.2% to 0.1%)
Trumpeter Swan
Total percent change, 1970-2021: 60100% (95% CI: 2720% to 985000%)
Annual trend (% change/year), 1970-2021: 13.4% (95% CI: 8.6% to 20.1%)
Total percent change, 2011-2021: 228% (95% CI: 2.41% to 514%)
Annual trend (% change/year), 2011-2021: 12.6% (95% CI: 3% to 21.8%)
Tufted Titmouse
Total percent change, 1970-2021: 34.3% (95% CI: -90.7% to 353%)
Annual trend (% change/year), 1970-2021: 0.6% (95% CI: -2.7% to 3.7%)
Total percent change, 2011-2021: 25.3% (95% CI: -46.5% to 303%)
Annual trend (% change/year), 2011-2021: 2.3% (95% CI: -3.4% to 16.1%)
Turkey Vulture
Total percent change, 1970-2021: 4230% (95% CI: 786% to 12500%)
Annual trend (% change/year), 1970-2021: 7.7% (95% CI: 5% to 10.1%)
Total percent change, 2011-2021: 158% (95% CI: 22.9% to 418%)
Annual trend (% change/year), 2011-2021: 9.9% (95% CI: 3.3% to 18.7%)
Upland Sandpiper
Total percent change, 1970-2021: -59.7% (95% CI: -92.1% to -13.9%)
Annual trend (% change/year), 1970-2021: -1.8% (95% CI: -3.9% to 0.2%)
Total percent change, 2011-2021: -34.3% (95% CI: -65.2% to -8.81%)
Annual trend (% change/year), 2011-2021: -4.1% (95% CI: -9.5% to -0.5%)
Veery
Total percent change, 1970-2021: 133% (95% CI: 36.1% to 256%)
Annual trend (% change/year), 1970-2021: 1.7% (95% CI: 0.6% to 2.5%)
Total percent change, 2011-2021: 42.2% (95% CI: 3.41% to 91.4%)
Annual trend (% change/year), 2011-2021: 3.6% (95% CI: 0.5% to 6.8%)
Vesper Sparrow
Total percent change, 1970-2021: -81.4% (95% CI: -88.2% to -73.9%)
Annual trend (% change/year), 1970-2021: -3.2% (95% CI: -4% to -2.5%)
Total percent change, 2011-2021: -19.3% (95% CI: -43.7% to 2.57%)
Annual trend (% change/year), 2011-2021: -2.1% (95% CI: -5.3% to 0.5%)
Virginia Rail
Total percent change, 1970-2021: -42.9% (95% CI: -96.8% to 55.7%)
Annual trend (% change/year), 1970-2021: -1.1% (95% CI: -4.2% to 1.4%)
Total percent change, 2011-2021: -9.42% (95% CI: -68.7% to 50.9%)
Annual trend (% change/year), 2011-2021: -1% (95% CI: -8.6% to 5%)
Warbling Vireo
Total percent change, 1970-2021: -25.4% (95% CI: -51.7% to 4.32%)
Annual trend (% change/year), 1970-2021: -0.6% (95% CI: -1.4% to 0.1%)
Total percent change, 2011-2021: -2.62% (95% CI: -24.4% to 20.8%)
Annual trend (% change/year), 2011-2021: -0.3% (95% CI: -2.7% to 2%)
Western Kingbird
Total percent change, 1970-2021: -97.8% (95% CI: -100% to -89.8%)
Annual trend (% change/year), 1970-2021: -7.2% (95% CI: -11.5% to -3.8%)
Total percent change, 2011-2021: -39.5% (95% CI: -94.9% to 45.6%)
Annual trend (% change/year), 2011-2021: -4.9% (95% CI: -17.3% to 5.5%)
Western Meadowlark
Total percent change, 1970-2021: -99.6% (95% CI: -99.9% to -99.3%)
Annual trend (% change/year), 1970-2021: -10.4% (95% CI: -11.7% to -9.2%)
Total percent change, 2011-2021: -53.2% (95% CI: -81% to -16%)
Annual trend (% change/year), 2011-2021: -7.3% (95% CI: -13.9% to -0.9%)
White-breasted Nuthatch
Total percent change, 1970-2021: 143% (95% CI: 61.6% to 227%)
Annual trend (% change/year), 1970-2021: 1.8% (95% CI: 1% to 2.4%)
Total percent change, 2011-2021: 2.69% (95% CI: -16% to 25.2%)
Annual trend (% change/year), 2011-2021: 0.3% (95% CI: -1.7% to 2.3%)
Wild Turkey
Total percent change, 1970-2021: 79900% (95% CI: 5830% to 489000%)
Annual trend (% change/year), 1970-2021: 14% (95% CI: 10% to 18.7%)
Total percent change, 2011-2021: 42.8% (95% CI: -46.4% to 161%)
Annual trend (% change/year), 2011-2021: 3.6% (95% CI: -4.5% to 10.6%)
Willow Flycatcher
Total percent change, 1970-2021: % (95% CI: % to %)
Annual trend (% change/year), 1970-2021: % (95% CI: % to %)
Total percent change, 2011-2021: -14.7% (95% CI: -45% to 10.2%)
Annual trend (% change/year), 2011-2021: -1.6% (95% CI: -5.4% to 1.2%)
Wilson’s Snipe
Total percent change, 1970-2021: -41.8% (95% CI: -78.7% to -5.04%)
Annual trend (% change/year), 1970-2021: -1.1% (95% CI: -2.7% to 0.1%)
Total percent change, 2011-2021: -17.8% (95% CI: -45.3% to 15.7%)
Annual trend (% change/year), 2011-2021: -1.9% (95% CI: -5.6% to 1.6%)
Wood Duck
Total percent change, 1970-2021: 105% (95% CI: -12.3% to 243%)
Annual trend (% change/year), 1970-2021: 1.4% (95% CI: -0.1% to 2.5%)
Total percent change, 2011-2021: 8.24% (95% CI: -22.5% to 60.3%)
Annual trend (% change/year), 2011-2021: 0.8% (95% CI: -2.5% to 4.8%)
Wood Thrush
Total percent change, 1970-2021: 287% (95% CI: 31.5% to 680%)
Annual trend (% change/year), 1970-2021: 2.7% (95% CI: 1.1% to 4.3%)
Total percent change, 2011-2021: 58.2% (95% CI: -2.37% to 148%)
Annual trend (% change/year), 2011-2021: 4.7% (95% CI: -0.2% to 9.5%)
Yellow-bellied Sapsucker
Total percent change, 1970-2021: 273% (95% CI: 50.4% to 690%)
Annual trend (% change/year), 1970-2021: 2.6% (95% CI: 1.2% to 4.3%)
Total percent change, 2011-2021: 9.98% (95% CI: -33.2% to 55.4%)
Annual trend (% change/year), 2011-2021: 1% (95% CI: -3.3% to 5%)
Yellow-billed Cuckoo
Total percent change, 1970-2021: -68.6% (95% CI: -90.1% to -38.2%)
Annual trend (% change/year), 1970-2021: -2.2% (95% CI: -4% to -0.8%)
Total percent change, 2011-2021: 31.6% (95% CI: -21% to 138%)
Annual trend (% change/year), 2011-2021: 2.8% (95% CI: -1.8% to 9.3%)
Yellow-headed Blackbird
Total percent change, 1970-2021: -93.1% (95% CI: -97.8% to -86.1%)
Annual trend (% change/year), 1970-2021: -5.1% (95% CI: -6.8% to -3.6%)
Total percent change, 2011-2021: -49% (95% CI: -75.1% to -13.5%)
Annual trend (% change/year), 2011-2021: -6.5% (95% CI: -12.3% to -1.1%)
Yellow-throated Vireo
Total percent change, 1970-2021: 308% (95% CI: 116% to 567%)
Annual trend (% change/year), 1970-2021: 2.8% (95% CI: 1.7% to 3.9%)
Total percent change, 2011-2021: 48% (95% CI: 7.78% to 98.3%)
Annual trend (% change/year), 2011-2021: 4% (95% CI: 1% to 7.2%)
Yellow Warbler
Total percent change, 1970-2021: 105% (95% CI: 38.5% to 183%)
Annual trend (% change/year), 1970-2021: 1.4% (95% CI: 0.7% to 2.1%)
Total percent change, 2011-2021: -12.8% (95% CI: -32.1% to 5.7%)
Annual trend (% change/year), 2011-2021: -1.4% (95% CI: -3.6% to 0.7%)
By Sam Safran